package com.kuang.springcloud.controller;

import com.kuang.springcloud.pojo.Dept;
import com.kuang.springcloud.service.DeptService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    @HystrixCommand(fallbackMethod = "hystrix_get") //当该方法内出现异常，则调用备选方法
    @GetMapping("/dept/get/{id}")
    public Dept get(@PathVariable("id") Long id) {
        Dept dept = deptService.queryById(id);
        if(dept == null) {
            throw new RuntimeException("不存在该用户==>"+id);
        }
        return dept;
    }

    /**
     * 备选方法
     * @param id
     * @return
     */
    public Dept hystrix_get(@PathVariable("id") Long id) {
        return new Dept().setDeptno(id)
                .setDname("id==>"+id+"没有对应的信息==>@Hystrix")
                .setDb_source("no this database");
    }
}
